http://tvdecoder.blogs.nytimes.com/2009/01/08/obama-recommends-delay-in-digital-tv-switch/?hp
Be aware that in the US:
1. The pending obsolescence of all items with analog-only tuners have been posted by law at the point of sale for several years.
2. The federal government has been providing up to two coupons worth $40 each towards a set top terrestrial box for each household to help ease the transition to digital. The boxes are about $60 last I checked.
NZ's analog turn off is imminent too, yet I don't any effort by our government to discourage sales of all those items such as DVD/HD recorders that will be relatively useless in a few years.